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What does Ruby have that Python doesn't, and vice versa?
... @Lennart: apart from your example just beeing horrible it is syntactically wrong, too.
– unbeknown
Jul 11 '09 at 13:02
2
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Generate random string/characters in JavaScript
...
I think this will work for you:
function makeid(length) {
var result = '';
var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
var charactersLength = characters.length;
for ( var i = 0; i < length; i++ ) ...
How does the const constructor actually work?
...in Dart is really an anonymous storage location combined with
an automatically created getter and setter that reads and updates the
storage, and it can also be initialized in a constructor's initializer
list.
A final field is the same, just without the setter, so the only way to
set it...
Convert a list of objects to an array of one of the object's properties
...
fantastic solution. I wanted to access the String "id" in my Object-List. Worked perfect List<String> somestringlist = myobjectlist.Select(x => x.id).ToList();
...
Aggregate / summarize multiple variables per group (e.g. sum, mean)
...reshape2 package for this task:
require(reshape2)
df_melt <- melt(df1, id = c("date", "year", "month"))
dcast(df_melt, year + month ~ variable, sum)
# year month x1 x2
1 2000 1 -80.83405 -224.9540159
2 2000 2 -223.76331 -288.2418017
3 2000 3 -188.83930 -481.560...
print call stack in C or C++
Is there any way to dump the call stack in a running process in C or C++ every time a certain function is called? What I have in mind is something like this:
...
How to avoid long nesting of asynchronous functions in Node.js
...rvation. Note that in JavaScript you can normally replace inline anonymous callback functions with named function variables.
The following:
http.createServer(function (req, res) {
// inline callback function ...
getSomeData(client, function (someData) {
// another inline callback func...
How to pull request a wiki page on GitHub?
...hub account:
Create a new repository on your github account. Let's call it "Taffy-Wiki".
Clone the Taffy wiki repo to your local machine somewhere: git clone git@github.com:atuttle/Taffy.wiki.git
Remove the original "origin" remote and add your github repo as new "origin" git remote rm o...
Exception handling in R [closed]
...
Basically you want to use the tryCatch() function. Look at help("tryCatch") for more details.
Here's a trivial example (keep in mind that you can do whatever you want with an error):
vari <- 1
tryCatch(print("passes"), er...
Calling C/C++ from Python?
...is one of the more user-friendly libraries in Boost, for a simple function call API it is quite straightforward and provides boilerplate you'd have to write yourself. It's a bit more complicated if you want to expose an object-oriented API.
– jwfearn
Sep 28 '0...